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<head>
    <meta charset="UTF-8">
    <title>Title</title>
<link rel="stylesheet" type="text/css" href="../CSS/CSS.css">
</head>
<body>
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<fieldset><legend>HTML介绍</legend>
<p>　<span class="f-w">文字描述</span>：Hyper Text Markup Language 超文本标签语言 </p>
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<p class="f-w">　代码示例</p>
<pre>
    &lt;html&gt;
    &lt;head&gt;title&lt;/head&gt;
    &lt;body&gt;
    &lt;button&gt; test &lt;button&gt;
    &lt;/body&gt;
    &lt;/html&gt;
    </pre>
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<p class="f-w">　代码效果</p>
<button style="margin-left:10px;">test</button>

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</body>
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